{"product_id":"ao3400-a09t-n-channel-mosfet-sot23-30v","title":"AO3400 A09T N-Channel MOSFET SOT-23 30V","description":"\u003ch2\u003eAO3400 A09T N-Channel MOSFET SOT-23 30V\u003c\/h2\u003e\n\u003cp\u003eThe AO3400, commonly marked A09T, is a compact N-channel enhancement MOSFET in SOT-23 package for low-voltage switching, PWM control, load switching, LED driving, battery circuits, and PCB repair. It is useful for Arduino, ESP32, Raspberry Pi, STM32, embedded systems, laptop repair, mobile repair, and general electronics projects in Pakistan.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eN-channel enhancement MOSFET for compact switching circuits\u003c\/li\u003e\n  \u003cli\u003eSOT-23 SMD package for PCB repair and small electronics designs\u003c\/li\u003e\n  \u003cli\u003eCommon top marking: A09T \/ AO3400 series\u003c\/li\u003e\n  \u003cli\u003e30 V drain-source voltage class\u003c\/li\u003e\n  \u003cli\u003eSuitable for load switching, PWM control, LED driving, and embedded projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Details\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePart number\u003c\/td\u003e\n\u003ctd\u003eAO3400 \/ A09T marking\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eDevice type\u003c\/td\u003e\n\u003ctd\u003eN-channel enhancement MOSFET\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003eSOT-23 SMD\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eDrain-source voltage\u003c\/td\u003e\n\u003ctd\u003e30 V class\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eDrain current\u003c\/td\u003e\n\u003ctd\u003eUp to 5.8 A under datasheet conditions; derate for real PCB layouts\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eGate drive\u003c\/td\u003e\n\u003ctd\u003eLogic-level operation commonly used around 2.5 V, 4.5 V, and 10 V gate drive conditions\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMounting type\u003c\/td\u003e\n\u003ctd\u003eSurface mount\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eRecommended use\u003c\/td\u003e\n\u003ctd\u003eLow-side switching, PWM control, LED drivers, battery circuits, PCB repair\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePackage includes\u003c\/td\u003e\n\u003ctd\u003e1 x AO3400 \/ A09T SOT-23 MOSFET\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eLow-side switching circuits\u003c\/li\u003e\n  \u003cli\u003ePWM switching and microcontroller output control\u003c\/li\u003e\n  \u003cli\u003eLED strips and small DC load switching\u003c\/li\u003e\n  \u003cli\u003eArduino, ESP32, Raspberry Pi, and STM32 projects\u003c\/li\u003e\n  \u003cli\u003eBattery-powered electronics and DC-DC circuits\u003c\/li\u003e\n  \u003cli\u003eMobile, laptop, and PCB-level repair\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs AO3400 an N-channel MOSFET?\u003c\/strong\u003e\u003cbr\u003eYes. AO3400 \/ A09T is an N-channel enhancement-mode MOSFET.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat package is this MOSFET?\u003c\/strong\u003e\u003cbr\u003eIt is supplied in SOT-23 surface-mount package.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does A09T mean?\u003c\/strong\u003e\u003cbr\u003eA09T is a common SMD top marking used for AO3400-series MOSFETs. Always match marking, package, and pinout before replacement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use it with Arduino or ESP32?\u003c\/strong\u003e\u003cbr\u003eYes, it can be used in suitable low-voltage switching circuits, but the gate drive voltage, load current, and heat must be checked.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it switch 5A loads?\u003c\/strong\u003e\u003cbr\u003eThe datasheet current rating depends on test conditions and PCB copper area. For practical projects, derate the current and verify temperature rise.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it suitable for PCB repair?\u003c\/strong\u003e\u003cbr\u003eYes. It is useful for repair work when the original component uses the same marking, package, polarity, and pinout.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs AO3400 the same as SI2302 or UT3404G?\u003c\/strong\u003e\u003cbr\u003eThey are similar small N-channel SOT-23 MOSFETs, but do not substitute without checking voltage, current, RDS(on), gate threshold, and pinout.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Note\u003c\/h3\u003e\n\u003cp\u003eSMD markings can vary by manufacturer and batch. Before repair, production, or high-current use, verify the exact datasheet, pinout, voltage rating, current rating, and thermal limits for your circuit.\u003c\/p\u003e","brand":"Embeded Studio","offers":[{"title":"Default Title","offer_id":62288051831154,"sku":"ES-AO3400-A09T-SOT23","price":15.0,"currency_code":"PKR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/7935\/3202\/files\/AO3400AO9T.webp?v=1788545304","url":"https:\/\/embededstudio.com\/products\/ao3400-a09t-n-channel-mosfet-sot23-30v","provider":"Embeded Studio","version":"1.0","type":"link"}